quill 
/ˈkwɪl/ noun
plural quills /ˈkwɪl/ noun [count] 1 a : the hollow central part of a feather
b : a large, stiff feather from the wing or tail of a bird 2 : a pen that is made from a feather —called also quill pen 3 : one of the hollow, sharp parts on the back of a porcupine
b : a large, stiff feather from the wing or tail of a bird
